.el-tree-node__content {
  height: 35px;
  // margin: 10px 0px;
  margin-bottom: 10px;
  margin-top: 0;

  .el-tree-node__expand-icon {
    padding: 0px;
    //   margin-right: 20px;
    width: 34px;
    height: 34px;
    content: url("../assets/images/tree/zhankai.png");
  }

  .expanded {
    content: url("../assets/images/tree/shousuo.png");
  }

  .el-tree-node__expand-icon.is-leaf {
    content: url("../assets/images/tree/wendang.png");
  }

  .el-tree-node__expand-icon.expanded {
    transform: rotate(0deg); //不让旋转
  }
}
